Large Queens, 1868–1876, 15c gray and gray violet study group of 65 stamps, all used, from the two distinctive colours of the 15c issue,
Large Queens, 1868–1876, 15c gray and gray violet study group of 65 stamps, all used, from the two distinctive colours of the 15c issue, including examples of both Ottawa and Montreal printings (first and second of each) and numerous varieties among shades, plates, and papers, noted among the owner-identified varieties being a deep violet on carton paper, deep blue, slate grey, the Pawnbroker, Balloon Flaw, a Precancel, cracked plates, watermarks, and thin papers, all catalogued as the least expensive example, a substantial opportunity for the student of this issue, overall fine or better. (Scott #29–30, c.v. $3,900+)